IMATRON INC
DEF 14A, 1998-06-09
ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS
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                      SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                            SCHEDULE 14A INFORMATION

                Proxy Statement Pursuant to Section 14(a) of the
                         Securities Exchange Act of 1934

Filed by the Registrant [ X ]
Filed by a Party other than the Registrant [ ]

Check the appropriate box:

[ ]  Preliminary Proxy Statement
[ ]  Confidential,  for  Use  of the  Commission  Only (as  permitted  by  Rule
     14a-6(e)(2))
[X]  Definitive Proxy Statement
[ ]  Definitive Additional Materials
[ ]  Soliciting Material Pursuant to ss.240.14a-11(c) or ss.240.14a-12


                                     IMATRON
- --------------------------------------------------------------------------------
                (Name of Registrant as Specified in Its Charter)


- --------------------------------------------------------------------------------
     (Name of Person(s) Filing Proxy Statement if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

[X]  No fee required.
[ ]  Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.

     (1)  Title of each class of securities to which transaction applies: N/A

     (2)  Aggregate number of securities to which transaction applies: N/A

     (3)  Per unit  price  or other  underlying  value of  transaction  computed
          pursuant to Exchange  Act Rule 0-11 (Set forth the amount on which the
          filing fee is calculated and state how it was determined): N/A

     (4)  Proposed maximum aggregate value of transaction: N/A

     (5)  Total fee paid: N/A

[ ]  Fee paid previously with preliminary materials.

[ ]  Checkbox if any part of the fee is offset as provided by Exchange  Act Rule
     0-11(a)(2)  and identify the filing for which the  offsetting  fee was paid
     previously.  Identify the previous filing by registration statement number,
     or the Form or Schedule and the date of its filing.

     (1)  Amount Previously Paid: N/A

     (2)  Form, Schedule or Registration Statement No.: N/A

     (3)  Filing Party: N/A

     (4)  Date Filed: N/A


<PAGE>

                                 IMATRON [LOGO]
                           389 Oyster Point Boulevard
                      South San Francisco, California 94080

                               -----------------

                    NOTICE OF ANNUAL MEETING OF SHAREHOLDERS

                                  July 13, 1998

                               -----------------



     TO THE SHAREHOLDERS:

     NOTICE IS HEREBY GIVEN that the Annual Meeting of  Shareholders  of Imatron
Inc., a New Jersey corporation (the "Company"), will be held on Monday, July 13,
1998,  at 10:00 a.m.,  local  time,  at the Embassy  Suites  Hotel,  250 Gateway
Boulevard, South San Francisco, California, for the following purposes:

         1. To elect  directors  to serve for the  ensuing  year and until their
            successors are elected.

         2. To approve the  Company's  Amended  and  Restated  Directors'  Stock
            Option  Plan,  and to  approve an  increase  in the number of shares
            authorized thereunder to 1,000,000 Common Shares.

         3. To  transact  such other  business as may  properly  come before the
            meeting or any adjournment thereof.

     The  foregoing  items of  business  are more fully  described  in the Proxy
Statement accompanying this Notice.

     Only  shareholders  of record at the close of  business on May 19, 1998 are
entitled  to  notice  of and  vote at the  meeting  and at any  continuation  or
adjournment thereof.





                                       By Order of the Board of Directors,

                                       /s/ Gary H. Brooks
                                       -----------------------------------
                                       Gary H. Brooks
                                       Secretary


South San Francisco, California
June 4, 1998


- --------------------------------------------------------------------------------
         ALL SHAREHOLDERS ARE CORDIALLY INVITED TO ATTEND THE MEETING IN
         PERSON. HOWEVER, TO ENSURE YOUR REPRESENTATION AT THE MEETING,
           YOU ARE URGED TO VOTE, SIGN, AND RETURN THE ENCLOSED PROXY
                 AS PROMPTLY AS POSSIBLE IN THE POSTAGE-PREPAID
                       ENVELOPE ENCLOSED FOR THAT PURPOSE.
- --------------------------------------------------------------------------------

<PAGE>
                                 IMATRON [LOGO]
                           389 Oyster Point Boulevard
                      South San Francisco, California 94080



                               -----------------

                                PROXY STATEMENT

                               -----------------



GENERAL

     The  enclosed  proxy is  solicited  on behalf of the Board of  Directors of
Imatron Inc., a New Jersey  corporation (the  "Company"),  for use at the annual
meeting of shareholders to be held on July 13, 1998 at 10:00 a.m. local time, at
which  shareholders  of record on May 19, 1998 will be entitled to vote.  On May
19, 1998,  the Company had issued and  outstanding  79,159,235  shares of Common
Stock.  The annual meeting will be held at the Embassy Suites Hotel, 250 Gateway
Boulevard, South San Francisco, California.


VOTING AND REVOCABILITY OF PROXIES

     All  properly  executed  proxies  that are not revoked will be voted at the
meeting  in  accordance  with  the  instructions   contained  therein.   Proxies
containing no  instructions  regarding  the  proposals  specified in the form of
proxy  will be voted  FOR  approval  of all  proposals  in  accordance  with the
recommendation of the Company's Board of Directors. Any person giving a proxy in
the form  accompanying  this statement has the power to revoke such proxy at any
time before its exercise.  The proxy may be revoked by filing with the Secretary
of the Company at the  Company's  principal  executive  office an  instrument of
revocation or a duly executed  proxy bearing a later date, or by filing  written
notice of  revocation  with the  secretary of the meeting prior to the voting of
the proxy or by voting the shares subject to the proxy by written ballot.

     Holders  of Common  Stock are  entitled  one vote for each  share of Common
Stock held.  Under New Jersey law,  approval of the Company's  Director's  Stock
Option Plan  requires the  affirmative  vote of the holders of a majority of the
votes  cast at the  annual  meeting by the  shareholders  entitled  to vote with
abstentions not counted as votes for or against. With respect to the election of
directors,  shareholders  are  entitled  to cast the number of votes held by the
shareholder for as many persons as there are directors to be elected.


SOLICITATION

     The  Company  will  bear  the  entire  cost  of   solicitation,   including
preparation, assembly, printing, and mailing of this proxy statement, the proxy,
and any additional material furnished to shareholders.  Original solicitation of
proxies  by  mail  may be  supplemented  by  telephone,  telegram,  or  personal
solicitation by directors,  officers, or employees of the Company; no additional
compensation will be paid for any such services.  Except as described above, the
Company does not intend to solicit proxies other than by mail.

     Arrangements  will also be made with brokerage firms and other  custodians,
nominees and fiduciaries to forward proxy material to certain  beneficial owners
of the Company's  Common Stock,  and the Company will  reimburse  such brokerage
firms,  custodians,   nominees  and  fiduciaries  for  reasonable  out-of-pocket
expenses incurred by them in connection therewith.

<PAGE>

     The Company intends to mail this proxy statement on or about June 8, 1998.


SHAREHOLDER PROPOSALS FOR NEXT ANNUAL MEETING

     Proposals  of  shareholders  that  are  intended  to be  presented  at  the
Company's 1999 annual meeting of shareholders must be received by the Company no
later than  January 8, 1999 in order to be included in the proxy  statement  and
proxy relating to that meeting.


                                   PROPOSAL 1
                              ELECTION OF DIRECTORS

     Each director to be elected will hold office until the next annual  meeting
of shareholders  and until his successor is elected and has qualified,  or until
his death, resignation, or removal.

     There are seven  nominees for the seven Board  positions  authorized by the
Company's  Bylaws.  All nominees are  currently  directors of the Company.  Each
person nominated for election has agreed to serve if elected, and management has
no reason to believe  that any  nominee  will be  unavailable  to serve.  Unless
otherwise  instructed,  the proxy holders will vote the proxies received by them
for the seven nominees named below. The seven  candidates  receiving the highest
number of affirmative votes of the shares entitled to vote at the annual meeting
will be elected directors of the Company.


                      MANAGEMENT RECOMMENDS A VOTE FOR EACH
                    OF THE NOMINEES FOR DIRECTOR NAMED BELOW


NOMINEES

     Seven directors will be elected at the annual meeting to serve for one year
expiring  on the  date of the  annual  meeting  in  1999.  Set  forth  below  is
information regarding the nominees, including information furnished by them.

<TABLE>
<CAPTION>
                                                       PERCENTAGE OF 1997
                                                       BOARD OR COMMITTEE
NAME                                        AGE       MEETINGS ATTENDED (A)            EXECUTIVE POSITION
- ------                                     -----      ----------------------        ----------------------
<S>                                         <C>                <C>                <C>
Douglas P. Boyd                             56                 100%               Chairman of the Board
John L. Couch                               57                 100%
S. Lewis Meyer                              53                 100%               President and Chief
                                                                                  Executive Officer
Jose Filipe Guedes                          51                  50%
William J. McDaniel, M. D.                  55                 100%
Terry Ross                                  50                87.5%
Aldo J. Test                                74                87.5%
</TABLE>

- --------------------------------------------------------------------------------

(a)  The  percentage of meetings  attended is based on the total number of Board
     and  Committee  meetings  which the  particular  director  was  eligible to
     attend.

     Dr. Boyd has held several positions with the Company since its inception in
1983 including Chief Executive Officer,  President,  Chief Technical Officer and
Director.  Dr.  Boyd is  currently  Chairman  of the Board and Chief  Technology
Officer.  He is an Adjunct Professor of Radiology (Physics) at the University of
California,  San Francisco  ("UCSF") and spends  approximately 5% of his time on
his duties at the University.  He has held various academic  positions with UCSF
for more than the past  five  years.  Dr.  Boyd also  serves  as a  director  of
InVision Technologies, Inc. and is a member of the Compensation Committee of its
board, and serves as a director of Accuimage Diagnostics Corp.

                                       2

<PAGE>

     Dr. Couch has been a director of the Company  since its  inception in 1983.
In May 1987 he became Vice President, Scientific Affairs. He served as Secretary
from March 1990 to December 1993.

     Mr. Guedes was elected a director of the Company on October 11, 1996.  From
January  1991  to  March  1995  he  acted  as the  Chief  Executive  Officer  of
Cerexport/Vista  Alegre, a ceramic  manufacturer.  In 1996 Mr. Guedes became the
President of Ceramic, S.A., a ceramic tile manufacturer.

     Admiral McDaniel,  a retired United States Navy Rear Admiral, was elected a
director on January 28, 1997. From 1992 to 1995 he was Chief  Executive  Officer
of Naval  Medical  Center,  Portsmouth,  Virginia,  a 346 bed tertiary  training
medical center for the Navy. From 1995 to 1997 Admiral  McDaniel was the Surgeon
General of the U.S. Pacific Command. In such position he was responsible for all
U.S. military contingency plans for the Pacific theatre, including preparing for
responses to wartime,  natural  disasters,  and  peacetime  humanitarian  relief
efforts.

     Mr. Meyer was elected  President and Chief Executive Officer of the Company
on June 23,  1993.  From  April  1991  until  joining  the  Company  he was Vice
President,  Operations  of Otsuka  Electronics  (U.S.A.),  Inc.,  Fort  Collins,
Colorado,   a   manufacturer   of  clinical  MR  systems  and   analytical   NMR
spectrometers.  From  August  1990 to April  1991 he was a  founding  partner of
Medical Capital Management,  a company engaged in providing  consulting services
to medical  equipment  manufacturers,  imaging  services  providers  and related
medical  professionals.  Prior  thereto  he was  Founder,  President  and  Chief
Executive  Officer of  American  Health  Services  Corp.,  (now  Insight  Health
Services) a developer and operator of diagnostic  imaging and treatment centers.
Mr. Meyer is a director of BSD Medical Corporation, a director of Finet Holdings
Corporation  and a member  of its  Compensation  Committee,  and a member of the
Board of Directors of the American Electronics Association (AEA).

     Mr. Ross has been a director of the Company  since  January 1987 and served
as its Vice  President,  Marketing and Sales from October 1985 to December 1987.
Since January 1988 Mr. Ross has been President of CEMAX-ICON,  Inc., a privately
held  company  engaged  in the  manufacture  and  sale of  medical  imaging  and
networking software.

     Mr. Test has been a director of the Company since its inception in 1983. He
is a  senior  partner  of the San  Francisco  and Palo  Alto law firm of  Flehr,
Hohbach,  Test,  Albritton & Herbert where he has practiced  patent law for more
than the past five years.


BOARD COMMITTEES AND MEETINGS

     During  1997 the  Board of  Directors  held  four  meetings.  The  Board of
Directors  has a standing  Audit  Committee  whose  function is to recommend the
engagement of the Company's independent accountants,  approve services performed
by such accountants, and review and evaluate the Company's accounting system and
system of internal  controls.  The Audit  Committee,  which consisted of Messrs.
Ross and Test, held one meeting during the fiscal year.

     The Board of Directors has a standing  Compensation  Committee  which makes
recommendations  to the Board of Directors  concerning  salaries  and  incentive
compensation paid to officers; administers the Company's 1993 Stock Option Plan,
including the grant of options,  the Company's 1987 Stock Bonus  Incentive Plan,
and the Company's  1994 Employee  Stock  Purchase  Plan; and performs such other
functions  regarding  compensation as the Board may delegate.  The  Compensation
Committee,  which consisted of Messrs. Ross and Test, held three meetings during
the year.


COMPENSATION OF DIRECTORS

     Aldo Test, a director of the Company,  renders  consulting  services to the
Company on a month-to-month basis for which he received  compensation of $16,200
during 1997, and may be expected to do so in the future.  The law firm of Flehr,
Hohbach,  Test,  Albritton & Herbert, of which Mr. Test is a member,  represents
the Company with respect to intellectual property matters and may be ex-

                                       3


<PAGE>

pected to  continue  to do so in the  future.  Terry  Ross,  a  director  of the
Company, renders consulting services to the Company pursuant to a month-to-month
consulting agreement which commenced in November 1993. In 1997 Mr. Ross received
$18,000 pursuant to such agreement.  Admiral McDaniel, a director of the Company
since  January,   1997  renders   consulting   services  to  the  Company  on  a
month-to-month basis for which he received  compensation of $50,700 during 1997,
and may be expected to do so in the future.

     NON-EMPLOYEE  DIRECTOR  OPTIONS.  In connection  with their services to the
Company,  directors  who are not  employees  of the  Company  have  periodically
received stock options under the 1991 Non-Employee  Directors' Stock Option Plan
(the  "Directors'  Plan") to purchase shares of Common Stock.  The directors and
shareholders approved the Directors' Plan in 1991 in order to attract and retain
highly qualified  non-employee directors by providing each non-employee director
with an  opportunity to purchase the Company's  stock and to provide  incentives
for such persons to exert maximum  efforts on behalf of the Company.  Subject to
provisions  relating to adjustments  upon changes in stock,  the Directors' Plan
currently  covers an aggregate of 550,000  shares of the Company's  Common Stock
which number will increase to 1,000,000  shares of the Company's Common Stock if
approved by the Shareholders. (SEE PROPOSAL TWO OF THIS STATEMENT).

     The  exercise  price of the options is 85% of the fair market  value of the
Common  Stock on the  date of grant as  quoted  on the  NASDAQ  National  Market
System.  Typically,  the options granted to directors vest 25% per year starting
with the first  anniversary of the date of grant, and have a term of five years.
Each option terminates prior to the expiration date if the optionee's service as
a  non-employee  director,  or,  subsequently  as an  employee,  of the  Company
terminates.

     The Directors' Plan is  administered  by the Board of Directors.  The Board
may suspend or terminate the Directors' Plan at any time. If no such termination
occurs, the Directors' Plan will terminate in the year 2001.

     Options  may be  granted  only  to  directors  of the  Company  who are not
employees of the Company or any affiliate of the Company.  The  Directors'  Plan
provides for the automatic  grant of options to purchase  shares of Common Stock
of the Company to non-employee directors. Each person elected for the first time
to be a  Non-Employee  Director  automatically  receives  an option to  purchase
25,000 shares of the Company's  Common Stock.  The Directors' Plan also provides
that every  non-employee  director  is to receive an option to  purchase  25,000
shares on July 1st of each year if such director served continuously as such for
the  entire  preceding  twelve  months.  The  directors  have  approved  certain
amendments to the Directors' Plan regarding,  among other provisions, the timing
of grants  and  number of shares  available  for  grant.  These  amendments  are
contained  in a new 1998  Amended and  Restated  Non-Employee  Directors'  Stock
Option Plan,  which Plan is being submitted  currently to the  shareholders  for
their approval. (SEE PROPOSAL TWO OF THIS STATEMENT.) If approved, the 1998 Plan
provides  that every  non-employee  director is to receive an option to purchase
25,000 shares on January 1st rather than July 1st of each year,  beginning  with
January 1, 1998.

     The non-employee directors (Messrs.  Guedes,  McDaniel,  Ross and Test) are
entitled to receive  options to purchase  25,000 shares each under the 1991 plan
on July 1st of each  year.  Under  that  provision,  Messrs.  Ross and Test each
received  25,000  shares  in fiscal  year  1997 at an option  price of $2.18 per
share.  In October 1996, Mr. Guedes  received 25,000 shares at an exercise price
of $3.99 per share upon his  election as a director of the  Company.  In January
1997,  Admiral  McDaniel  received 25,000 shares at an option price of $2.24 per
share upon his election as a director of the Company. In addition, directors who
are not  officers of the Company are eligible for  reimbursement  in  accordance
with Company policy for their expenses but not fees in connection with attending
meetings of the Board of Directors and any committees thereof.

     EMPLOYEE  DIRECTOR  COMPENSATION.  Employees  who serve as directors of the
Company (Drs. Boyd and Couch and Mr. Meyer ) receive no additional  compensation
for such service.  Dr. Boyd and Mr. Meyer are also named  executive  officers of
the Company and their  compensation  is  reflected  in the Summary  Compensation
Table contained elsewhere in this statement.

                                       4

<PAGE>

         SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

     The following tables,  based in part upon information supplied by officers,
directors and principal  shareholders,  set forth certain information  regarding
the ownership of the Company's voting securities as of April 30, 1998 by (i) all
those known by the Company to be beneficial  owners of more than five percent of
any class of the Company's  voting  securities;  (ii) each director;  (iii) each
named executive  officer;  and (iv) all executive  officers and directors of the
Company as a group.  Unless  otherwise  indicated,  each of the shareholders has
sole voting and investment power with respect to the shares  beneficially owned,
subject to community property laws where applicable.


SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS (A)

<TABLE>
<CAPTION>
                               NAME AND ADDRESS OF                   AMOUNT OF DIRECT
TITLE OF CLASS                   BENEFICIAL OWNER                  BENEFICIAL OWNERSHIP          PERCENT OF CLASS
- --------------                -----------------------             -----------------------      -----------------
<S>                           <C>                                        <C>                          <C>
Common                        Marukin Corporation (b)                    5,471,617                    7.0%
</TABLE>

- -------------------

(a)  Security  ownership   information  for  beneficial  owners  is  taken  from
     statements  filed with the Securities and Exchange  Commission  pursuant to
     Sections 13(d), 13(g) and 16(a) and information made known to the Company.

(b)  Marukin Corporation, 6, Rokuban-Cho Chiyoda-Ku, Tokyo 10.


SECURITY OWNERSHIP OF DIRECTORS AND EXECUTIVE OFFICERS

     The table below presents the security ownership of the Company's  Directors
and Named Executive Officers.

<TABLE>
<CAPTION>
                                                                   AMOUNT AND NATURE OF
TITLE OF CLASS                  NAME OF BENEFICIAL OWNER         BENEFICIAL OWNERSHIP (A)    PERCENT OF CLASS (B)
- --------------               ----------------------------        -------------------------    -------------------
<S>                           <C>                                     <C>                             <C>
Common                        Douglas P. Boyd                         2,060,488(c)                    2.6%
Common                        Gary H. Brooks                            141,640(d)                       *
Common                        John L. Couch                              52,750(e)                       *
Common                        Jose Filipe Guedes                          6,250(e)                       *
Common                        William J. McDaniel, M.D.                  26,250(f)                       *
Common                        S. Lewis Meyer                            619,578(g)                       *
Common                        Terry Ross                                 25,000(e)                       *
Common                        Aldo Test                                  63,750(h)                       *
Common                        All Directors and                       2,970,956(i)                    3.8%
                              Executive Officers as a Group
</TABLE>

- -------------------

 *   Does not exceed 1% of the referenced class of securities.

(a)  Ownership is Direct unless indicated otherwise.

(b)  Calculation  based on 79,146,985  shares of Common Stock  outstanding as of
     April 30, 1998.

(c)  Includes  1,830,801  shares owned directly and 229,687 shares issuable upon
     the exercise of stock options that are  exercisable as of April 30, 1998 or
     that will become exercisable within 60 days thereafter.

(d)  Includes  16,015 shares owned directly and 125,625 shares issuable upon the
     exercise of stock options that are exercisable as of April 30, 1998 or that
     will become exercisable within 60 days thereafter.

                                       5

<PAGE>

(e)  All  shares  are  issuable  upon the  exercise  of stock  options  that are
     exercisable as of April 30, 1998 or that will become  exercisable within 60
     days thereafter.

(f)  Includes  20,000 shares owned  directly and 6,250 shares  issuable upon the
     exercise of stock options that are exercisable as of April 30, 1998 or that
     will become exercisable within 60 days thereafter.

(g)  Includes  13,328 shares owned directly and 606,250 shares issuable upon the
     exercise  of stock  options  exercisable  as of April 30, 1998 or that will
     become exercisable within 60 days thereafter.

(h)  Includes  20,000 shares owned directly and 43,750 shares  issuable upon the
     exercise  of stock  options  exercisable  as of April 30, 1998 or that will
     become exercisable within 60 days thereafter.

(i)  Includes  1,095,562  shares that  directors and executive  officers had the
     right to acquire  pursuant to the exercise of options that were exercisable
     on  April  30,  1998  or  that  will  become  exercisable  within  60  days
     thereafter.  The percentage of beneficial ownership assumes the exercise of
     the aforesaid options by officers and directors.


                             EXECUTIVE COMPENSATION

SUMMARY COMPENSATION OF NAMED EXECUTIVES

     The Summary Compensation Table shows certain  compensation  information for
each person who served as Chief Executive  Officer during the year and the other
most highly compensated executive officers whose aggregate compensation exceeded
$100,000  for  services  rendered  in all  capacities  during  fiscal  year 1997
(collectively  referred to as the "Named Executive Officers".  Compensation data
is shown for the fiscal  years ended  December  31,  1997,  1996 and 1995.  This
information includes the dollar value of base salaries, bonus awards, the number
of stock options granted,  and certain other compensation,  if any, whether paid
or deferred.


                           SUMMARY COMPENSATION TABLE

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                LONG TERM
                                                                              COMPENSATION
                                                  ANNUAL COMPENSATION            AWARDS
                                                                                OPTIONS/           ALL OTHER
NAME AND PRINCIPAL POSITION        YEAR      SALARY($)(A)       BONUS             SARS          COMPENSATION(B)
- ------------------------------     -----     -------------     -------       ---------------  ------------------
<S>                                <C>          <C>             <C>               <C>                <C>
Douglas P. Boyd
  Chairman of the Board            1997         174,300                                              4,750
                                   1996         166,000                                              4,700
                                   1995         158,000                                              4,620

S. Lewis Meyer                     1997         221,500                                              4,750
  President and Chief              1996         211,000                           75,000(c)          4,750
  Executive Officer                1995         201,000                                              4,620

Gary H. Brooks                     1997         137,500                                              4,020
  Vice President and               1996         131,000                           40,000(d)          3,880
  Chief Financial Officer          1995         125,000                           37,500(e)          3,627

</TABLE>

- ---------------------------
(a) Amounts shown include cash and non-cash  compensation earned with respect to
    the year shown above.

(b) Represents the Company's matching contributions to its 401(k) plan.


                                       6


<PAGE>

(c) Represents  HeartScan  non-statutory  stock options granted in February 1996
    under the HeartScan 1995 Stock Option Plan.

(d) Represents  options  granted in March 1996  under the  Company's  1993 Stock
    Option Plan.

(e) Represents  HeartScan  options  granted in October 1995 under the  HeartScan
    1995 Stock Option Plan.


INCENTIVE AND REMUNERATION PLANS

     1987 STOCK BONUS  INCENTIVE  PLAN. In 1988 the  shareholders of the Company
approved the adoption of a Stock Bonus Incentive Plan ("Stock Bonus Plan").  The
Stock Bonus Plan was adopted to reward  participants  for past  services  and to
encourage  them to remain in the  Company's  service.  The Stock  Bonus  Plan is
administered  by the  Compensation  Committee  of the Board of  Directors  which
presently  consists  of  Messrs.  Test and Ross.  The  Committee  has  exclusive
authority to act on the  following  matters:  selection of the persons among the
eligible  participants (which consists of all employees,  including officers and
directors of the Company, and consultants to the Company) who are to participate
in the Stock Bonus Plan; the  determination  of each  participant's  stock bonus
opportunity  and actual  bonus;  changes in the Plan,  and all other actions the
Committee deems necessary or advisable to administer the Plan.

     The total  number of shares of Common  Stock which may be issued  under the
Stock Bonus Plan is 1,200,000  shares with no more than 400,000 shares available
for issuance in any single calendar year.

     In addition,  the  Compensation  Committee has authorized  additional bonus
opportunities  for  participants  based on the  participant  achieving  specific
corporate objectives. The bonus opportunity for each participant is expressed as
a percentage  of base salary,  with a maximum bonus  opportunity  of 40% of base
salary.  After  the end of each  fiscal  year,  the  Committee  determines  each
participant's  bonus award expressed in dollars.  The number of shares of Common
Stock to be issued is  determined  by  dividing  the bonus  award by the closing
stock price for the Common Stock on the grant date.

     No participant is eligible to receive a bonus award unless such participant
is either  employed  by the  Company or  providing  consulting  services  to the
Company on the last day of the calendar year to which the bonus relates.

     During the 1997 fiscal year 110,930  shares were  granted to all  employees
under  the  Stock  Bonus  Plan of which no  shares  were  granted  to any  Named
Executive Officer.


STOCK PARTICIPATION AND OPTION PLANS

     1994 EMPLOYEE  STOCK  PURCHASE  PLAN.  In 1993 the  directors  approved the
adoption of the 1994 Employee  Stock  Purchase  Plan (the "Plan").  The Plan was
approved by the  shareholders  at the 1994 Annual  Meeting and became  effective
January 1, 1994.  All  employees,  including  executive  officers,  may purchase
shares of the Company's  Common Stock at a discount of 15% from the market price
of the shares. The plan replaced the Company's 1984 Employee Stock Participation
Plan which  expired  January 17,  1994.  The Plan is  intended to qualify  under
Section  423 of the  Internal  Revenue  Code of 1986,  but is not subject to the
provisions of ERISA.

     The  maximum  aggregate  number of shares to be  offered  under the Plan is
1,800,000 shares of the Company's  Common Stock.  The  shareholders  approved an
increase  in the  number of shares  issuable  under the Plan from  1,000,000  to
1,800,000  shares at the 1996 Annual  Meeting.  As of April 13, 1998,  1,298,110
shares of the Company's Common Stock have been issued under the Plan.

     All employees who are regular employees of the Company,  whose date of hire
is at least six months prior to the beginning of the Offering  Period or Interim
Offering Period, and who are cus-

                                       7


<PAGE>

tomarily  employed  for at least 20 hours per week and more than five  months in
any calendar year are eligible to  participate  in the Plan.  The first Offering
Period began January 1, 1994 and ran through March 31, 1996. The Second Offering
Period  began April 1, 1996 and will run through  June 30,  1998.  Each  Interim
Offering  Period is a  calendar  quarter.  As of April 1,  1998,  a total of 194
employees met the eligibility requirements under the Plan.

     Eligible  employees are offered the opportunity to purchase Common Stock by
means of  payroll  deductions  of 2%,  4%,  6%, 8% or 10% of  compensation.  The
specific percentage selected is at the employee's option, up to a yearly maximum
established  from time to time  (currently  established  at  $7,000) of the fair
market value of the Stock,  determined on the Offering  Date, and so long as the
participant  would not own 5% or more of the voting power of the Company's stock
following the purchase.  Each participant may begin participation in the Plan at
the  beginning  of the  Offering  Period or any  Interim  Offering  Period,  may
decrease but not increase  participation  during the  Offering  Period,  and may
terminate  participation  in the Plan  before  the end of any  Interim  Offering
Period, all subject to certain notice and filing requirements.

     Administration  of the  Plan is by the  Company's  Board,  or  Compensation
Committee by  delegation.  The Committee is comprised of at least two members of
the Company's Board, each of whom must be disinterested as defined in Securities
and Exchange Commission  regulations.  The Committee has the powers of the Board
pursuant to the Plan,  including the power to determine  questions of policy and
expediency that may arise in the  administration of the Plan, all subject to the
provisions of the Plan.  Members of the Committee  receive no  compensation  for
their services in connection with the administration of the Plan.

     The price for the shares purchased  pursuant to the Plan is equal to 85% of
the fair  market  value of the  shares on either the  Offering  Date (or date of
entry  for new or  re-enrolling  employees)  or the  last  day of  each  Interim
Offering  Period,  whichever is less. The funds  contributed by the  participant
earn no interest while they are being held by the Company.

     To  participate  in  the  Plan,   employees  must  submit  the  appropriate
documentation  authorizing  deductions from payroll in specified  amounts to the
Company prior to the Offering Period or Interim Offering Period.  Funds deducted
during the quarter are used to purchase  shares of the  Company's  Common Stock,
the  number of which is  determined  (in whole  shares) on the final day of that
quarter by dividing the amount in the participant's Plan Account by the purchase
price of the  stock  as  determined  above.  Participants  receive  certificates
quarterly  for all shares  purchased  during that  quarter.  They may retain the
certificated  shares or sell them in the open  market or  otherwise,  subject to
securities   and  tax  law   restrictions.   Upon   termination  of  employment,
participants will receive  certificates  evidencing  previously purchased shares
and a return of any balance remaining in the  participant's  account on the date
of termination.

     The Board  reserves the right to amend or  discontinue  the Plan,  provided
that no  participant's  existing  rights are  adversely  affected,  and provided
further that without Shareholder approval,  no amendment will be effective:  (1)
increasing the aggregate number of shares authorized for purchase under the Plan
or to be purchased by any participant;  (2) materially changing the requirements
for  eligibility to  participate,  or reducing the purchase price formula in the
Plan, or materially  increasing the benefits accruing to participants  under the
Plan; (3) extending the term of the Plan; or (4) otherwise modifying the Plan if
the modification requires shareholder approval to satisfy applicable statutes or
Internal Revenue Service and/or Securities and Exchange Commission regulations.

     1993 STOCK OPTION PLAN.  The  Company's  1993 Stock Option Plan,  which was
approved by the Shareholders at the 1993 Annual Meeting (the "Option Plan"),  is
intended  to  advance  the  interests  of the  Company  by  inducing  persons of
outstanding  ability  and  potential  to join and  remain  with the  Company  by
enabling them to acquire proprietary  interests in the Company.  The Option Plan
covers an aggregate of 5,500,000  shares of Common  Stock.  At the June 25, 1995
Annual Meeting,  the  shareholders  approved an increase in the number of shares
which may be issued under the Option Plan from 3,000,000 to 5,500,000.

                                       8


<PAGE>

     The  Option  Plan  provides  for the  granting  of two  types  of  options:
"incentive stock options" and "nonstatutory  stock options." The incentive stock
options  (but not the  nonstatutory  stock  options)  are intended to qualify as
"incentive stock options" as defined in Section 422 of the Internal Revenue Code
of 1986, as amended.  The Option Plan succeeded the 1983 Stock Option Plan which
expired in 1993.

     Options  may be granted  under the  Option  Plan to all  full-time  regular
employees  including   officers,   directors  (whether  or  not  employees)  and
consultants of the Company; provided,  however, that incentive stock options may
not be granted to any non-employee  director or consultant.  As of April 1, 1998
approximately  217 employees and consultants were eligible to participate in the
Option Plan.

     The Compensation Committee of the Board of Directors administers the Option
Plan. The Committee has the power, subject to the provisions of the Option Plan,
to determine the persons to whom and the dates on which options will be granted,
the number of shares to be subject to each option,  the time or times during the
term of each  option  within  which  all or a  portion  of  such  option  may be
exercised, and the other terms of the options.

     The maximum term of each option is ten years. Incentive Stock Options (ISO)
granted  under  the  Plan  generally  vest  quarterly  over a four  year  period
following the date of grant.  Non-Statutory Options (NSO) granted under the Plan
generally vest annually over a four-year period following the date of grant.

     The exercise  price of all  nonstatutory  stock  options  granted under the
Option  Plan  must be at  least  equal to 85% of the  fair  market  value of the
underlying stock on the date of grant. The exercise price of all incentive stock
options  granted under the Option Plan must be at least equal to the fair market
value of the underlying stock on the date of grant.


Option Grants in Last Fiscal Year

     The following  table sets forth the options  granted during the last fiscal
year to each of the named executive officers of the Company:

                      Option/SAR Grants In Last Fiscal Year
<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------------------------------------

                                         INDIVIDUAL GRANTS              POTENTIAL REALIZABLE VALUE
                                                                        AT ASSUMED ANNUAL RATES
                                                                        OF STOCK PRICE APPRECIATION
                                                                        FOR OPTION TERM
- -----------------------------------------------------------------------------------------------------------------------------------

                           NUMBER OF    % OF TOTAL
                           SECURITIES   OPTIONS
                           UNDER        GRANTED TO
                           OPTIONS      EMPLOYEES     EXERCISE OR
                           GRANTED      IN FISCAL     BASE PRICE    MARKET      EXPIRATION
NAME                       (#)          YEAR(A)       ($/SH)        PRICE       DATE         0%($)   5%($)(B)
- ------                     ----------   -----------   ------------  --------    -----------  ------  ---------

<S>                         <C>          <C>           <C>           <C>         <C>          <C>     <C>
Douglas P. Boyd            -0-          -0-           -0-           -0-         -0-          -0-     -0-

Gary Brooks                -0-          -0-           -0-           -0-         -0-          -0-     -0-

S. Lewis Meyer             -0-          -0-           -0-           -0-         -0-          -0-     -0-
</TABLE>


- -------------------------
(a)  Based on 1,169,360 options granted to all employees.

     Based on  5-year  option  term and  annual  compounding;  results  in total
appreciation of 27.6% (at 5% per year) and 61.1% (at 10% per year).

                                       9

<PAGE>

OPTION EXERCISES IN LAST FISCAL YEAR AND YEAR-END OPTION VALUES

     The following table sets forth the options exercised during the last fiscal
year by Named Executive Officers of the Company:

       Aggregated Options Exercised and Option Values in Fiscal Year 1996

<TABLE>
<CAPTION>
                                                           NUMBER OF SECURITIES          VALUE OF UNEXERCISED
                                                          UNDERLYING UNEXERCISED        IN THE MONEY OPTIONS AT
                                                          OPTIONS AT YEAR-END (#)            YEAR-END ($)
                       SHARES ACQUIRED       VALUE
         NAME          ON EXERCISE (#)   REALIZED ($)    EXERCISABLE/UNEXERCISABLE     EXERCISABLE/UNEXERCISABLE
        ------        -----------------  ------------   ---------------------------   ---------------------------

<S>                         <C>               <C>               <C>                            <C>
Douglas P. Boyd             4,950             $10,067                225,000/0                      $404,250/0

S. Lewis Meyer                -0-                 -0-                600,000/0                    $1,050,000/0

Gary H. Brooks                -0-                 -0-           117,500/22,500                 $198,375/$5,625
</TABLE>


COMPENSATION COMMITTEE REPORT

     This  report is  provided  by the  Compensation  Committee  of the Board of
Directors  (the  "Committee")  to  assist   stockholders  in  understanding  the
Committee's  objectives  and  procedures in  establishing  the  compensation  of
Imatron's Chief Executive Officer and other executive  officers.  The Committee,
made  up  of  non-employee   Directors,  is  responsible  for  establishing  and
administering the Company's executive  compensation program. None of the members
of the  Committee are eligible to receive  awards under the Company's  incentive
compensation programs.

     Imatron's executive  compensation program is designed to motivate,  reward,
and retain the management  talent needed to achieve its business  objectives and
maintain its  competitiveness  in the medical imaging industry.  It does this by
utilizing  competitive  base  salaries  that  recognize a  philosophy  of career
continuity and by rewarding  exceptional  performance and  accomplishments  that
contribute to the Company's success.


                      COMPENSATION PHILOSOPHY AND OBJECTIVE

     The  philosophical  basis  of  the  compensation  program  is  to  pay  for
performance and the level of  responsibility  of an individual's  position.  The
Committee  finds  greatest  value in  executives  who  possess  the  ability  to
implement  the  Company's  business  plans as well as to react to  unanticipated
external  factors that can have a significant  impact on corporate  performance.
Compensation  decisions  for  all  executives,  including  the  named  executive
officers and the Chief Executive Officer, are based on the same criteria.  These
include  quantitative  factors that directly  improve the  Company's  short-term
financial  performance,  as well as  qualitative  factors  that  strengthen  the
Company  over the long  term,  such as  demonstrated  leadership  skills and the
ability to deal quickly and effectively with difficulties which sometimes arise.

     The  Committee  believes  that  compensation  of Imatron's  key  executives
should:

           o  Link rewards to business results and stockholder returns;
           o  Encourage   creation  of  stockholder  value  and  achievement  of
              strategic  objectives;  o Maintain an appropriate  balance between
              base salary and short- and long-term incentive opportunity;
           o  Attract  and  retain,  on  a  long-term  basis,  highly  qualified
              executive personnel; and
           o  Provide total  compensation  opportunity  that is competitive with
              that  provided by  competitors  in the medical  imaging  industry,
              taking into account  relative company size and performance as well
              as individual responsibilities and performance.

                                       10

<PAGE>

                     KEY ELEMENTS OF EXECUTIVE COMPENSATION

     Imatron's executive  compensation program consists of three elements:  Base
Salary,  Short-Term  Incentives and Long-Term  Incentives.  Payout of short-term
incentives depends on corporate  performance  measured against annual objectives
and  overall  performance.   Payout  of  the  long-term  incentives  depends  on
performance of Imatron stock, both in absolute and relative terms.


BASE SALARY
     A  competitive  base  salary  is  crucial  to  support  the  philosophy  of
management  development  and career  orientation  of  executives.  Salaries  are
targeted to pay levels of the Company's competitors and companies having similar
capitalization  and revenues,  among other  attributes.  Executive  salaries are
reviewed annually.


SHORT-TERM INCENTIVE
     Short-term  awards to executives are made in cash and in stock to recognize
contributions  to the  Company's  business  during the past  year.  The bonus an
executive  receives  is  dependent  on  individual   performance  and  level  of
responsibility.  Assessment  of an  individual's  relative  performance  is made
annually  based  on a number  of  factors  which  include  initiative,  business
judgment, technical expertise, and management skills.

     STOCK BONUS INCENTIVE PLAN. In 1988 the shareholders  approved the adoption
of the 1987 Stock Bonus Incentive Plan.  Under the terms of the Stock Bonus Plan
the  Committee  may award shares of the  Company's  Common  Stock to  employees,
including executive officers.


LONG-TERM INCENTIVE
     Long-term  incentive awards provided by  shareholder-approved  compensation
programs are designed to develop and maintain  strong  management  through share
ownership and incentive  awards.  No long term incentive  awards were granted to
executive officers in 1997.

     STOCK OPTION PLAN. In 1994, the  shareholders  approved the adoption of the
1993 Stock Option Plan (which  replaced the 1983 Stock Option Plan). In 1995 the
directors and shareholders approved an increase in the number of shares reserved
under the Option Plan from  3,000,000  shares to 5,500,000  shares.  At the sole
discretion  of the  Committee,  eligible  officers  and  employees  periodically
receive options to purchase shares of the Company's Common Stock pursuant to the
Option  Plan.  The value of the  options  depends  entirely on  appreciation  of
Imatron  stock.  Grant of options  depends  upon  quarterly  and annual  Company
performance, as determined by review of qualitative and quantitative factors.

     EMPLOYEE  STOCK  PURCHASE  PLAN.  In 1994 the  directors  and  shareholders
approved the adoption of the 1994 Employee  Stock  Purchase Plan. All employees,
including executive officers,  may purchase shares of the Company's Common Stock
at a  discount  of 15% from the  market  price of the  shares.  The Plan  became
effective January 1, 1994.

     1997  COMPENSATION.  Total  revenue  for the year ended  December  31, 1997
increased 53% to $39,423,000;  net product revenues increased 71% to $27,363,000
due to  shipment  of 18  scanners  as opposed to 10  scanners  in 1996;  service
revenues  increased  30% to  $4,513,000  due to an increase  in  scanners  under
service.  On the other hand,  HeartScan  Imaging,  Inc. sustained losses greater
than  anticipated  due to start-up costs that were larger and of longer duration
than  anticipated.  In addition to  significantly  increased  scanner sales, the
Company  made  substantial  progress in product  development,  achieved ISO 9001
registration of its quality system, and achieved  important  im-provement in its
manufacturing  processes.  Nevertheless,  compensation  levels  during 1997 were
principally  driven by a highly  competitive  market in San  Francisco - Silicon
Valley, particularly for personnel with engineering and technical training. As a
consequence,  compensation for such personnel increased at rates higher than the
increase in the  cost-of-living and ranged from 3% to 5%. Based on the Company's
performance,   only  modest  cost-of-living  and  merit  salary  increases  were
implemented during the year for the Named Executive Officers. No bonuses of cash
or stock were given

                                       11


<PAGE>

nor were any  stock  options  granted  during  the year to any  Named  Executive
Officer.  Stock Options were granted to other  employees of the Company based on
the employee's level of responsibility and other factors.

                    1997 CHIEF EXECUTIVE OFFICER COMPENSATION

     On March 1, 1996 Mr.  Meyer's base salary was  increased  from  $195,000 to
$205,000, and effective January 1, 1997 was increased to $215,250,  both actions
reflecting modest cost of living increases. The Committee believes that the base
salary and other terms and conditions of his employment are consistent  with the
foregoing  philosophy  and  objectives  and  reflect  the scope and level of his
responsibilities.

Members of the Compensation Committee

Terry Ross
Aldo Test








                                       12

<PAGE>

- --------------------------------------------------------------------------------
SHARE INVESTMENT PERFORMANCE

     The following  graph  compares the total return  performance of the Company
for the periods indicated with the performance of the NASDAQ Index (presented on
a  dividends  reinvested  basis) and the  performance  of the  Hambrecht & Quist
Technology  Index. The Company's shares are traded on the NASDAQ National Market
System  under the symbol  "IMAT".  The  Hambrecht  & Quist  Technology  Index is
comprised of the publicly traded stocks of 200 technology  companies and include
companies in the electronics,  medical and related  technology  industries.  The
total return indices reflect  reinvested  dividends and are weighted on a market
capitalization basis at the time of each reported data point.

                                PERFORMANCE GRAPH

         (The following table represents a graph in the printed piece.)

Year    Imatron    NASDAQ    H&Q Technology Index
- ----    -------    ------    --------------------
1992    100        100       100
1993    45.71      114.8     117.41
1994    100        112.21    141.04
1995    182.86     158.7     210.89
1996    302.86     195.19    262.1
1997    211.43     239.53    307.29


<TABLE>
<CAPTION>
Year                           1992          1993           1994           1995          1996           1997
- ---------------                -----         -----          -----          -----         -----          -----
<S>                             <C>          <C>             <C>          <C>           <C>            <C>
Imatron Inc.                    100          45.71           100          182.86        302.86         211.43
Hambrecht & Quist
  Technology Index              100         117.41         141.04         210.89        262.10         307.29
NADSAQ Index                    100         114.80         112.21         158.70        195.19         239.53
</TABLE>


EMPLOYMENT CONTRACTS, TERMINATION OF EMPLOYMENT
AND CHANGE-IN-CONTROL ARRANGEMENTS

     S. Lewis Meyer became President and Chief Executive  Officer of the Company
on June 14, 1993. In connection with such employment the Company entered into an
Executive  Employment  Agreement  with Mr. Meyer  providing  for an initial term
ending   December  31,  1994  and  continuing  for  rolling  six  month  periods
thereafter.  Pursuant to the agreement Mr. Meyer is entitled to a base

                                       13


<PAGE>

salary of $185,000 per year subject to annual review, a one time hiring bonus of
$75,000,  a  non-qualified  stock  option  to  purchase  600,000  shares  of the
Company's  Common Stock at $0.58 per share (85% of the closing  price of a share
of the Company's  Common Stock on the date of grant)  (subsequently  repriced to
$0.56),  to be vested over a four year  period,  a warrant to  purchase  400,000
shares of the Company's Common Stock at an exercise price of $1.50 (subsequently
repriced  to $0.75 per share)  exercisable  for five years  commencing  June 14,
1994,  but not  later  than 12  months  following  Mr.  Meyer's  termination  of
employment, and certain other benefits.


FILINGS BY DIRECTORS, EXECUTIVE OFFICERS AND TEN PERCENT HOLDERS

     Section 16(a) of the Securities Exchange Act of 1934 requires the Company's
directors,  executive  officers,  and persons who own more than ten percent of a
registered  class  of the  Company's  equity  securities,  to  file  reports  of
ownership and changes in ownership with the Securities and Exchange  Commission.
Executive  officers,  directors,  and greater than ten percent  shareholders are
required by SEC  regulation  to furnish  the Company  with copies of all Section
16(a) forms they file.

     Based  solely on its review of the copies of such forms  received by it, or
written  representations  from  certain  reporting  persons that no Forms 5 were
required for those persons,  the Company believes that one report was not timely
filed. Douglas Boyd, a director of the Company, was one month late filing a Form
4 beneficial  ownership  report,  reflecting two  transactions not reported on a
timely basis.


TRANSACTIONS WITH MANAGEMENT AND OTHERS

     Dr.  Douglas  Boyd,  currently  Chairman of the Board and Chief  Technology
Officer for the  Company,  also serves as a director  of  Accuimage  Diagnostics
Corporation  (see above).  During the year ended  December 31, 1997, the Company
sold products to Accuimage Diagnostics  Corporation in the amount of $16,000 and
purchased  goods and services  from  Accuimage  Diagnostics  Corporation  in the
amount of $100,000.  All products sold and goods and services  purchased were at
competitive prices.  Products sold to Accuimage and goods and services purchased
from Accuimage  during 1997  represented  than one percent (1%)  respectively of
products sold by and goods and services purchased by the Company during 1997.


                                   PROPOSAL 2
           TO APPROVE THE COMPANY'S AMENDED AND RESTATED NON-EMPLOYEE
       DIRECTORS' STOCK OPTION PLAN, AND TO APPROVE THE NUMBER OF SHARES
                              AUTHORIZED THEREUNDER

     The Board of Directors is presenting, for approval by the shareholders,  an
amended and restated  Stock  Option Plan  applicable  to  Directors  who are not
employees of the  Company,  and to increase the number of shares of Common Stock
issuable under the Stock Option Plan from 550,000 to 1,000,000  shares,  without
par value.

     In May  1991  the  Board  of  Directors  adopted,  and  in  June  1991  the
shareholders  approved,  the 1991  Non-Employee  Directors'  Stock  Option  Plan
("Directors'  Plan") authorizing the issuance of 250,000 shares of the Company's
Common  Stock.   The  Directors'  Plan  provides  for  the  automatic  grant  of
nonqualified  options to non-employee  directors.  In February 1993 the Board of
Directors amended,  and in June 1993 the shareholders  approved,  the Directors'
Plan to  increase  the number of shares  reserved  for  issuance  thereunder  to
550,000 shares.

     The Board of Directors continues to believe that the success of the Company
is  affected  by the  ability of the Company to attract and retain as members of
its Board of Directors  knowledgeable  persons of broad business or professional
experience who have no employment  relationship with the Company.  The Board has
therefore  adopted an amended and restated  Non-Employee  Directors' Plan ("1998
Directors'  Plan) and  proposes to increase  the number of shares  reserved  for
issuance thereun-

                                       14


<PAGE>

der to  1,000,000  shares to enhance  the  ability of the Company to attract and
retain qualified non-employee  directors, by providing eligible directors with a
proprietary interest in the Company through the grant of stock options.

     The following is a summary of the material  features of the 1998 Directors'
Plan.  The full text of the 1998  Directors'  Plan is attached as Exhibit A, and
the following summary is qualified in its entirety by reference to it.


PROPOSAL

     In January 1998 the Board of Directors  amended and restated the Directors'
Plan in its  entirety to, among other  provisions,  modify the vesting  schedule
contained  in the prior plan and to increase  the number of shares  reserved for
issuance  thereunder to 1,000,000.  At the annual meeting the  shareholders  are
being  requested to consider and approve the foregoing 1998 Amended and Restated
Non-Employee  Directors'  Plan  in its  entirety.  The  affirmative  vote of the
holders of a majority  of the shares  represented  and voting at the  meeting is
required for approval.


                   MANAGEMENT RECOMMENDS A VOTE FOR PROPOSAL 2


     The essential features of the 1998 Directors' Plan are outlined below.


PURPOSE

     The purpose of the 1998 Directors'  Plan, as with the 1991 Directors' Plan,
is to  provide  a means by which  each  director  of the  company  who is not an
employee  of  the  company  or  any  affiliate  of  the  company  ("Non-Employee
Directors")  is given an  opportunity  to  purchase  stock of the  Company.  The
Company,  by means of the  Directors'  Plan,  seeks to retain  the  services  of
persons now serving as  Non-Employee  directors  of the  Company,  to secure and
retain the  services  of persons  capable  of serving in such  capacity,  and to
provide  incentive for such persons to exert maximum  efforts for the success of
the Company.


ADMINISTRATION

     The Directors'  Plan is  administered  by the Company's Board of Directors.
The Board is authorized to delegate  administration  of the Directors' Plan to a
committee composed of at least three members of the Board.


SHARES SUBJECT TO THE DIRECTORS' PLAN

     Subject to the  provisions of the  Directors'  Plan relating to adjustments
upon changes in stock,  the stock that may be sold  pursuant to options  granted
under the Directors'  Plan, as amended,  cannot exceed an aggregate of 1,000,000
shares of the Company's Common Stock. If any option granted under the Directors'
Plan  expires  for any  reason  or  otherwise  terminates  without  having  been
exercised  in full,  the stock not  purchased  under such option  again  becomes
available for the Directors' Plan.


ELIGIBILITY

     Options under the  Directors'  Plan may be granted only to directors of the
Company who are not  employees  of the Company or any  affiliate  of the Company
(currently Messrs.  Guedes,  McDaniel,

                                       15


<PAGE>

Ross and Test).  Douglas Boyd, John Couch and S. Lewis Meyer are not eligible to
receive  options  under the  Directors'  Plan because they are  employees of the
Company.


AUTOMATIC GRANTS

     The Directors' Plan provides for the automatic grant of options to purchase
shares of Common Stock of the Company to Non-Employee Directors.  The Directors'
Plan  provides  that each  person  who is  elected  for the  first  time to be a
Non-Employee Director after the date of approval of the Plan by the shareholders
of the Company  (and who has not  previously  been an  employee of the  Company)
shall, upon the date of its initial election, automatically be granted an option
to purchase 25,000 shares of the Company's Common Stock.

     The Directors' Plan also provides that every Non-Employee Director shall be
granted an option to purchase  25,000 shares on January 1st of each year if such
Non-Employee  Director  has  served  continuously  as  such  for  at  least  the
immediately preceding thirty (30) days.


TERMS OF OPTIONS

     Term. Options under the Directors' Plan have a ten year term; however, each
option will terminate on the last day of the  three-month  period  commencing on
the date the Eligible Director ceases to be a member of the Board for any reason
other than death or total disability,  in which case the option may be exercised
within 18 months following termination of such directorship.

     EXERCISE  PRICE;  PAYMENT.  The  exercise  price of each  option  under the
Directors'  Plan must be equal to 85% of the fair  market  value of the stock on
the  grant  date.  The  optionee  may  elect  to pay the  option  price in cash,
certified check, bank draft or express money order.

     VESTING; OPTION EXERCISE. An option granted under the Directors' Plan vests
pursuant to one of two schedules,  determined by the Board at the time of grant:
(i) in full on the date of  grant;  or (ii) in four  equal  annual  installments
commencing on the date one year after the grant date. Options vesting in full on
the grant date are subject to the Company's  right to repurchase at the original
per share purchase price,  which  repurchase right lapses at the rate of 25% per
year starting with the first  anniversary  of the Grant.  The Company also has a
repurchase  right with respect to options granted pursuant to either schedule if
the service of a  Non-Employee  Director is terminated for any reason other than
death or total  disability,  which  repurchase right continues for 90 days after
termination of service. If the Non-Employee  Director exercises its option after
termination of services for any reason other than death or total disability, the
Company's repurchase right continues for 90 days after the exercise.


RESTRICTIONS ON TRANSFER

     An option under the Directors' Plan is not  transferable  except by will or
by the  laws of  descent  and  distribution,  and may be  exercised  during  the
grantee's   lifetime   only  by  the  grantee  or  by  its   guardian  or  legal
representative.


DURATION, AMENDMENT AND TERMINATION

     The Board may amend, modify, revise or terminate the Directors' Plan at any
time.  Unless sooner  terminated,  the Directors'  Plan will terminate ten years
from the date the plan is approved by the shareholders of the Company.

     Any  amendment of the  Directors'  Plan must be approved by the vote of the
shareholders of the Company within twelve months before or after the adoption of
the amendment,  where the amendment  would modify the Directors' Plan in any way
if such modification  requires  shareholder approval in order for the Directors'
Plan to  comply  with the  requirements  of Rule  16b-3  promulgated

                                       16


<PAGE>

under  the  Exchange  Act or to  prevent  disqualification  of the  Non-Employee
Directors from being  "disinterested  persons" within the meaning of Rule 16b-3.
Rights  and  obligations  under  any  option  granted  before  amendment  of the
Directors'  Plan  may  not  be  altered  or  impaired  by any  amendment  of the
Directors'  Plan,  except  with the consent of the person to whom the option was
granted.


ADJUSTMENT PROVISIONS

     If there is any  change  in the stock  subject  to the  Directors'  Plan or
subject  to any  option  granted  under the  Directors'  Plan  (through  merger,
consolidation,  reorganization,   recapitalization,  stock  dividend,  or  other
changes in the Company's  capital structure or its business) the Directors' Plan
and options  outstanding  thereunder  will be  appropriately  adjusted as to the
class  and the  maximum  number of shares  subject  to such plan and the  class,
number of  shares  and price  per  share of stock  subject  to such  outstanding
options.  There  is no  provision  for  accelerated  vesting  in the  event of a
dissolution, liquidation, merger or other capital reorganization of the Company.


FEDERAL INCOME TAX INFORMATION

     Options  granted  under  the  Directors'  Plan will be  nonqualified  stock
options.  There are normally no tax  consequences to the optionee or the Company
by reason of the grant of a  nonqualified  stock  option.  Upon exercise of such
option, the optionee normally  recognizes  ordinary income in an amount by which
the fair market value of the stock on the date of exercise  exceeds the exercise
price. Upon disposition of the stock, the optionee will recognize a capital gain
or loss equal to the  difference  between the  selling  price and the sum of the
amount  paid for such shares plus any amount  recognized  as ordinary  income on
exercise of the option.  There are no tax  consequences to the Company by reason
of the disposition of stock acquired upon exercise of a nonqualified option.


INDEMNIFICATION OF COMMITTEE

     Under  the terms of the  Directors'  Plan,  members  of the  Committee  are
entitled to be indemnified by the Company against costs and expenses  reasonably
incurred in connection with any action or proceeding  brought by reason of their
action or failure to act under or in connection  with the Directors' Plan or any
rights granted thereunder.


                                 OTHER BUSINESS

     The Board of Directors  knows of no other  business  that will be presented
for  consideration at the annual meeting.  If other matters are properly brought
before the meeting,  however,  it is the  intention of the persons  named in the
accompanying  proxy to vote the shares  represented  thereby on such  matters in
accordance with their best judgment.


                                       By Order of the Board of Directors,


                                       /s/ Gary H. Brooks
                                       ------------------
                                       Gary H. Brooks
                                       Secretary


June 4, 1998

                                       17

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                                    EXHIBIT A

                                  IMATRON INC.

                            1998 AMENDED AND RESTATED
                    NON-EMPLOYEE DIRECTORS' STOCK OPTION PLAN

     1.  PURPOSE OF THE PLAN.  This  Imatron  Inc.  1998  Amended  and  Restated
Non-Employee  Directors'  Stock  Option  Plan (the  "Plan") is  adopted  for the
benefit  of the  directors  of  Imatron  Inc.,  a New  Jersey  corporation  (the
"Company")  who, at the time of their service,  are not employees of the Company
or any of its subsidiaries (the "Non-Employee  Directors").  It amends, restates
and, upon becoming fully effective,  replaces in its entirety the Company's 1991
Non-Employee  Directors'  Stock  Option Plan ("1991  Plan"),  and is intended to
advance the  interests of the Company by providing  the  Non-Employee  Directors
with additional  incentive to serve the Company by increasing their  proprietary
interest in the success of the Company.

     2.  ADMINISTRATION  OF THE PLAN. (a) The Plan shall be  administered by the
Board of  Directors  of the  Company  (the  "Board").  The  Board  may  delegate
administration  of the Plan to a committee  ("Committee")  comprised of not less
than  three (3)  members of the  Board.  If  administration  is  delegated  to a
Committee,  the Committee shall have, in connection with the  administration  of
the Plan, the powers possessed by the Board,  subject to such  resolutions,  not
inconsistent  with the  provisions  of the Plan,  as may be adopted from time to
time by the Board. The Board may abolish the committee at any time and revest in
the Board the administration of the Plan. (b) The Board shall have the authority
to adopt, alter and repeal such administrative  rules,  guidelines and practices
governing the Plan as it shall, from time to time, deem advisable;  to interpret
the terms and  provisions of the Plan and any Option granted under the Plan (and
any agreements relating thereto);  and to otherwise supervise the administration
of the plan,  and to exercise  such  powers and  perform  such acts as the Board
deems  necessary or expedient to promote the best interests of the Company.  The
Board may correct any defect, supply any omission or reconcile any inconsistency
in the Plan or in any  Option in the  manner  and to the  extent  it shall  deem
necessary  to  carry  the  Plan  into  effect.  (c) All  actions  taken  and all
interpretations  and  determinations  made by the Board in good  faith  shall be
final and binding upon all Non-Employee  Directors,  the Company,  and all other
interested  persons.  (d) No member of the Board shall be personally  liable for
any action, determination,  or interpretation made in good faith with respect to
the Plan;  and all members of the Board shall be fully  protected by the Company
in respect of any such action, determination, or interpretation.

     3. STOCK  SUBJECT TO AND  RESERVED  FOR THE PLAN.  (a) The total  number of
shares of the Company's  Common Stock, no par value (the "Common  Stock"),  with
respect to which  Options  may be granted  under the Plan,  shall not exceed the
aggregate of 1,000,000 shares;  provided,  however, that the class and aggregate
number of shares which may be subject to the Options granted  hereunder shall be
subject to adjustment in  accordance  with the  provisions of Section 14 of this
Plan. Such shares may be treasury  shares,  reacquired  shares or authorized but
unissued  shares.  (b) The Company shall  reserve for issuance  pursuant to this
Plan such  number of shares of Common  Stock as may from time to time be subject
to Options granted hereunder.  If any Option expires or is canceled prior to its
exercise  in full,  the shares  theretofore  subject to such Option may again be
made subject to an Option under the Plan. (c) All Options granted under the Plan
will constitute non-qualified options (the "Option").

     4.  ELIGIBILITY. Options shall be granted only to Non-Employee Directors of
         the Company.

     5.  NON-DISCRETIONARY GRANT OF OPTIONS.

         (a)  NON-EMPLOYEE  DIRECTORS  ELECTED AFTER THE  EFFECTIVE  DATE OF THE
PLAN:  INITIAL  GRANT.  For so long as this Plan is in  effect  and  shares  are
available  for the grant of Options  hereunder,  each person who is elected as a
Non-Employee Director of the Company for the first time after the effective date
of the Plan,  and who is not and has not been an  employee of the Company or any
of the  Company's  subsidiaries  (as defined in Section  424(f) of the  Internal
Revenue  Code of 1986,  as  amended


<PAGE>

(the "Code") (a "New  Director")  shall be granted a one-time  Option  ("Initial
Option") to purchase 25,000 shares of Common Stock at a per share exercise price
equal to 85% of the Fair Market Value (defined below) of a share of Common Stock
on such date (subject to the  adjustments  provided in Section 14 hereof).  This
Section  5(a)  shall  only  apply to New  Director  the first  time he or she is
elected a director of the Company after the effective date of this Plan.

         (b) ANNUAL OPTION GRANT TO NON-EMPLOYEE DIRECTORS ("ANNUAL OPTION"). In
addition,  for so long as (i) this Plan is in effect,  and (ii) there are shares
available for the grant of Options hereunder,  each person serving as an elected
Non-Employee  Director  as of the  effective  date of this  Plan  and  each  New
Director  (together  "Eligible  Director")  shall be granted  automatically,  on
January 1st of each year (or the next day on which the Company's common stock is
traded should the Company's  common stock not trade on such date,  commencing as
of  January  1, 1998 and  subject  to the  adjustments  provided  in  Section 14
hereof),  an Option to  purchase  25,000  shares of Common  Stock at a per share
exercise price equal to 85% of the Fair Market Value (defined  below) of a share
of Common Stock. The foregoing notwithstanding, such Eligible Director must have
served as a  Non-Employee  Director  continuously  for at least thirty (30) days
immediately preceding the first day of January of any given year, in order to be
eligible for grant of an Annual Option as of January 1st of that year.

         (C) OPTION PRICE.  For the purposes of this Section 5, the "Fair Market
Value" as of any  particular  date shall mean (i) the closing sales price on the
immediately preceding business day of a share of Common Stock as reported on the
principal securities exchange on which shares of Common Stock are then listed or
admitted to trading or (ii) if not so  reported,  the average of the closing bid
and  asked  prices  for a share of  Common  Stock on the  immediately  preceding
business  day as  quoted  on the  National  Association  of  Securities  Dealers
Automated  Quotation  System  ("NASDAQ")  or (iii) if not quoted on NASDAQ,  the
average  of the  closing  bid and asked  prices  for a share of Common  Stock as
quoted  by the  National  Quotation  Bureau's  "Pink  Sheets"  or  the  National
Association of Securities  Dealers' OTC Bulletin Board System. If the price of a
share of Common Stock shall not be so reported, the Fair Market Value of a share
of Common Stock shall be determined by the Board in its absolute discretion.

     6. OPTION AGREEMENT.  Each Option granted under the Plan shall be evidenced
by an agreement,  in a form approved by the Board, which shall be subject to the
terms and  conditions  of the Plan.  Any agreement may contain such other terms,
provisions  and  conditions  as may be  determined by the Board and that are not
inconsistent with the Plan.

     7.  VESTING AND TERM OF OPTIONS.  (a) Each Option  granted  under this Plan
shall be subject to vesting  pursuant  to one of two  schedules:  (i) vesting in
full on the  date of  grant;  or (ii)  vesting  in four (4)  equal  installments
commencing on the first  anniversary  of the date of grant;  provided,  however,
that each such Option,  regardless of the manner of vesting, shall be subject to
termination  as provided in Section 9 hereof.  The schedule of vesting,  whether
vesting in full or in installments,  shall be determined by the Board as part of
and at the time of the grant;  provided  however,  that any Option granted under
this Plan  which  vests in full on the date of grant as set forth in  subsection
(i) above,  shall be  subject,  as a  condition  of such  Option  grant,  to the
Company's right to repurchase as provided in Section 16 hereof.  (b) Each Option
agreement  shall also  provide  that the Option  shall expire ten years from the
date of grant, unless sooner terminated pursuant to Section 9 hereof.

     8.  EXERCISE OF OPTIONS.  Options  shall be  exercisable  at any time after
their appropriate  vesting date, subject to termination as provided in Section 9
hereof  and to the  Company's  right to  repurchase  as  provided  in Section 16
hereof.  Options  shall be  exercised by written  notice to the Company  setting
forth the number of shares with  respect to which the Option is being  exercised
and specifying the address to which the  certificates  representing  such shares
are to be mailed.  Such notice shall be accompanied by cash or certified  check,
bank  draft,  or postal  or  express  money  order  payable  to the order of the
Company, for an amount equal to the product obtained by multiplying the exercise
price of the  Option by the  number of shares of Common  Stock  with  respect to
which the Option is then being  exercised.  As  promptly  as  practicable  after
receipt of such written  notification and payment,  the Company shall deliver to
the Eligible  Director a certificate or certificates  repre-


                                      -2-

<PAGE>

senting the number of shares of Common  Stock with  respect to which such Option
has  been so  exercised,  issued  in the  Eligible  Director's  name,  provided,
however,  that such delivery shall be deemed  effected for all purposes when the
Company's  transfer agent shall have deposited such  certificates  in the United
States  mail,  addressed  to the  Eligible  Director,  at the address  specified
pursuant to this Section 8.

     9. TERMINATION OF OPTIONS. Except as may be otherwise expressly provided in
this Plan or otherwise  determined by the Board,  each Option,  to the extent it
shall not have been exercised previously, shall terminate on the earliest of the
following:  (i) on the last day of the three-month period commencing on the date
on which the Eligible Director ceases to be a member of the Board for any reason
other than the death or total disability (within the meaning of Section 22(e)(3)
of the Internal Revenue Code) of the Eligible Director, in which case the option
may be exercised at any time within eighteen (18) months  following  termination
of such directorship or service, during which period the Eligible Director shall
be entitled to exercise all Options held by the Eligible Director on the date on
which the Eligible  Director  ceased to be a member of the Board that could have
been  exercised on such date;  or (ii) ten years after the date of grant of such
Option.

     10.  TRANSFERABILITY  OF OPTIONS.  During the term of an Option, the Option
shall not be assignable or otherwise  transferable except by will or by the laws
of descent and distribution.  Each Option shall be exercised during the Eligible
Director's lifetime only by the Eligible Director.

     11. NO RIGHTS AS STOCKHOLDER. No Eligible Director shall have any rights as
a  stockholder  with  respect to shares  covered by an Option  until the date of
issuance of a stock certificate or certificates representing such shares. Except
as provided in Section 14 hereof, no adjustment for dividends or otherwise shall
be made if the  record  date  therefor  is  prior  to the  date of  issuance  of
certificates  representing shares of Common Stock purchased pursuant to exercise
of this Option.

     12.  INVESTMENT  REPRESENTATIONS.  Whether  or not the  Options  and shares
covered by the Plan have been  registered  under the  Securities Act of 1933, as
amended,  each person exercising an option under the Plan may be required by the
Company to give a  representation  in writing that such person is acquiring such
shares for  investment  and not with a view to, or for sale in connection  with,
the  distribution  of any part  thereof.  The Company will endorse any necessary
legend   referring  to  the  foregoing   restriction  upon  the  certificate  or
certificates  representing  any shares  issued or  transferred  to the  Eligible
Director upon the exercise of any Option granted under the Plan.

     13.  AMENDMENT  OR  TERMINATION.  The Board may  amend,  modify,  revise or
terminate this Plan at any time and from time to time. All Options granted under
this Plan  shall be  subject  to the terms and  provisions  of this Plan and any
amendment,  modification  or  revision  of this  Plan  shall be deemed to amend,
modify or revise  all  Options  outstanding  under this Plan at the time of such
amendment, modification or revision. If this Plan is terminated by action of the
Board, all outstanding Options may be terminated.

     14.  CHANGES  IN  THE  COMPANY'S  CAPITAL   STRUCTURE.   The  existence  of
outstanding  Options  shall  not  affect  in any way the  right  or power of the
Company or its  stockholders to make or authorize the dissolution or liquidation
of the Company,  any sale or transfer of all or any part of the Company's assets
or business, any reorganization or other corporate act or proceeding, whether of
a similar  character or otherwise,  any or all  adjustments,  recapitalizations,
reorganizations  or other  changes in the  Company's  capital  structure  or its
business,  any merger or consolidation of the Company, or any issuance of bonds,
debentures,  preferred or prior  preference  stock  senior to or  affecting  the
Common  Stock  or the  rights  thereof;  provided,  however,  that  if  (i)  the
outstanding  shares of Common Stock of the Company  shall be  subdivided  into a
greater number of shares or (ii) the outstanding shares of Common Stock shall be
combined into a smaller number of shares thereof,  then (a) the number of shares
of Common  Stock  available  for the grant of  Options  under the Plan  shall be
proportionally adjusted to equal the product obtained by multiplying such number
of  available  shares  remaining  by a fraction,  the  numerator of which is the
number of  outstanding  shares  of  Common  Stock  after  giving  effect to such
combination  or  subdivision  and the  denominator  of which is that  number  of
outstanding shares of Common Stock prior to such combination or subdivision, (b)
the  exercise  price of any  Option  then  outstanding  under the Plan  shall be
proportionately  adjusted to 

                                      -3-


<PAGE>

equal the product obtained by multiplying such exercise price by a fraction, the
numerator of which is the number of outstanding  shares of Common Stock prior to
such  combination or subdivision  and the denominator of which is that number of
outstanding  shares of Common Stock after giving effect to such  combination  or
subdivision,  and (c) the  number  of shares of  Common  Stock  issuable  on the
exercise of any Option then  outstanding  under the Plan or  thereafter  granted
under the Plan shall be  proportionately  adjusted to equal the product obtained
by  multiplying  such  number  of  shares of  Common  Stock by a  fraction,  the
numerator  of which is the number of  outstanding  shares of Common  Stock after
giving effect to such combination or subdivision and the denominator of which is
that number of outstanding  shares of Common Stock prior to such  combination or
subdivision.

     15. COMPLIANCE WITH OTHER LAWS AND REGULATIONS. (a) The Plan, the grant and
exercise of Options  thereunder,  and the  obligation of the Company to sell and
deliver shares  acquirable on exercise of such Options,  shall be subject to all
applicable  federal and state laws,  rules and regulations and to such approvals
by any governmental or regulatory agency or national  securities exchange as may
be  required.  The Company  shall not be required to sell or issue any shares on
exercise  of any  Option if the  issuance  of such  shares  shall  constitute  a
violation by the  Non-Employee  Director or the Company of any provisions of any
law or regulation of any governmental  authority.  (b) Each Option granted under
this Plan  shall be subject to the  requirement  that,  if at any time the Board
shall  determine  that (i) the listing,  registration  or  qualification  of the
shares subject thereto on any securities  exchange or under any state or federal
law of the United  States or of any other  country or  governmental  subdivision
thereof,  (ii) the consent or approval of any  governmental  regulatory body, or
(iii) the  making of  investment  or other  representations,  are  necessary  or
desirable in connection with the issue or purchase of shares subject thereto, no
such  Option  may  be  exercised  in  whole  or in  part  unless  such  listing,
registration, qualification, consent, approval or representation shall have been
effected or obtained,  free of any conditions  not acceptable to the Board.  (c)
These  provisions do not obligate the Company to register  either the Plan,  any
option  granted under the Plan, or any stock issued or issuable  pursuant to any
such Option, under any state or federal law of the United States or of any other
country or governmental  subdivision thereof. (d) Any determination by the Board
in connection with any of the above  determinations  shall be final, binding and
conclusive.

     16.  REPURCHASE RIGHT OF THE COMPANY.

         (a)  GENERAL.  Shares of stock issued or issuable  upon  exercise of an
option  grant  with  immediate  vesting,  as set forth in Section  7(a)(i),  are
subject  to  a  right  of  repurchase  by  the  Company.  If  the  service  of a
Non-Employee  Director  to  the  Company  or a  subsidiary  of  the  Company  is
terminated  for any reason  other than by death or total  disability,  except as
otherwise described in Section 16(d), the Company (or any subsidiary  designated
by it) shall have the option for 90 days after the termination of service by the
Non-Employee  Director  to  repurchase  all or any part of his  stock  issued or
issuable upon exercise of the option, as provided in this Section 16.

         (b) NOTICE.  Within 30 days of  receiving  notice  from a  Non-Employee
Director or his  representative of the termination of the director's  service to
the Company or a subsidiary of the Company,  the Company must give notice to the
director of the  Company's  decision  whether or not to exercise its  repurchase
right.

         (c) REPURCHASE  PRICE.  The repurchase  price per share  repurchased in
accordance  with this Section 16 shall be the original per share  purchase price
set  forth in the  accompanying  Notice of Stock  Option  Grant.  The  Company's
repurchase right at this price lapses at the rate of 25% per year, starting with
the first  anniversary of the Option Grant, and continues over 4 years,  without
reference to the date the Option was exercised or became exercisable.

         (d) SHARES  ACQUIRED  THROUGH  EXERCISE OF OPTION AFTER  TERMINATION OF
SERVICES.  If the Non-Employee Director exercises in whole or in part his option
after termination of his services to the Company for any reason other than death
or total disability, the Company shall have, for 90 days after the exercise, the
right  to  repurchase  the  shares  so  acquired  upon  written  notice  to  the
Non-Employee  Director. The purchase price and terms of payment will be governed
by Sections 16(c) and (e) of this Plan.

                                      -4-

<PAGE>


         (e) PAYMENT OF THE PURCHASE  PRICE.  The Company's  right to repurchase
must be exercised for cash or  cancellation of purchase money  indebtedness  for
the shares within 90 days of termination of service by the Non-Employee Director
(or in the case of securities  issued upon exercise of Options after the date of
termination, within 90 days after the date of exercise).

         (f) DEATH OR TOTAL DISABILITY. There shall be no right of repurchase by
the Company upon the  Non-Employee's  death or total  disability.  The foregoing
notwithstanding, the provisions of this Section 16(g) do not extend or otherwise
affect the  termination  of any Option which shall not have been  exercised,  as
otherwise set forth in Section 9 herein.

         (g) REPURCHASE  RIGHT AS TO OTHER SHARES.  The repurchase  right of the
Company  shall  apply  as well to all  shares  or  other  securities  issued  in
connection  with  any  stock  split,   reverse  stock  split,   stock  dividend,
recapitalization,  reclassification,  spin-off, split-off, merger, consolidation
or reorganization ("Other Shares") but such right shall expire on the occurrence
of any event or transaction upon which the Option terminates.

     17.  INDEMNIFICATION  OF BOARD OF  DIRECTORS.  The  Company  shall,  to the
fullest extent permitted by law, indemnify,  defend and hold harmless any person
who at  any  time  is a  party  or is  threatened  to be  made  a  party  to any
threatened,  pending or completed  action,  suit or proceeding  (whether  civil,
criminal, administrative or investigative) in any way relating to or arising out
of this Plan or any Options  granted  hereunder  by reason of the fact that such
person is or was at any time a director of the Company against judgments, fines,
penalties,  settlements  and reasonable  expenses  (including  attorneys'  fees)
actually  incurred  by such  person  in  connection  with such  action,  suit or
proceeding.  This right of  indemnification  shall  inure to the  benefit of the
heirs,  executors and  administrators  of each such person and is in addition to
all other rights to which such person may be entitled by virtue of the bylaws of
the Company or as a matter of law, contract or otherwise.

     18.  ADDITIONAL  PROVISIONS.  (a) Nothing in the Plan, or in any instrument
executed  pursuant thereto,  shall confer upon any Non-Employee  Director either
the  right  or  the  obligation  to  continue  acting  as a  director  of (or to
employment by) the Company,  nor shall any Plan provision or instrument executed
pursuant  thereto  affect  any  right  of the  Company,  its  Board  and/or  its
shareholders to terminate the  directorship  (or employment) of any Non-Employee
Director  with or without  cause.  (b) In  connection  with each option  granted
pursuant  to the  Plan,  each  Non-Employee  Director  shall  make  arrangements
satisfactory  to the  Company to insure  that the amount of any federal or other
withholding tax required to be withheld with respect to such sale or transfer is
made available to the Company for timely payment of such tax.

     19. EFFECTIVE DATE OF THE PLAN. This Plan shall become  effective,  subject
to stockholder approval, on January 1, 1998. No Option shall be granted pursuant
to this Plan on or after December 31, 2008.

     20. GOVERNING LAW. The Plan shall be governed by, and all questions arising
hereunder,  shall be  determined  in  accordance  with the laws of the  State of
California as such laws are applied to agreements between  California  residents
entered into and to be performed entirely within California.





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                                  IMATRON INC.

                      PROXY SOLICITED BY BOARD OF DIRECTORS
               FOR ANNUAL MEETING OF SHAREHOLDERS -- JULY 13, 1998

         Douglas P. Boyd and S. Lewis  Meyer,  or either of them,  each with the
power of  substitution  and revocation,  are hereby  authorized to represent the
undersigned  with all powers which the  undersigned  would possess if personally
present,  to vote the  securities of the  undersigned  at the annual  meeting of
shareholders of IMATRON INC. to be held at the Embassy Suites Hotel, 250 Gateway
Boulevard, South San Francisco,  California, at 10:00 a.m. local time on Monday,
July 13, 1998, and at any  postponements  or adjournments of that meeting as set
forth below,  and in their  discretion upon any other business that may properly
come before the meeting.

THE BOARD OF  DIRECTORS  RECOMMENDS  AN  AFFIRMATIVE  VOTE FOR THE  NOMINEES FOR
DIRECTOR LISTED BELOW:

     1. To elect  directors  to hold  office  until the 1999  annual  meeting of
shareholders or until their successors are elected.

          / / FOR all nominees listed below      / / WITHHOLD AUTHORITY
                 (except as marked below)         to vote for all nominees
                                                  listed below

Douglas P. Boyd             John L. Couch        Jose Filipe Guedes
William J. McDaniel         S. Lewis Meyer       Terry Ross          Aldo Test


TO WITHHOLD AUTHORITY TO VOTE FOR ANY NOMINEE, WRITE THAT NOMINEE'S NAME BELOW:

- -------------------------------------------------------------------------------

THE BOARD OF DIRECTORS RECOMMENDS AN AFFIRMATIVE VOTE FOR PROPOSAL TWO BELOW:

    2. To approve the  Company's  Amended and Restated  Directors'  Stock Option
       Plan, and to approve the number of shares authorized thereunder.

       / / FOR               / / AGAINST               / / ABSTAIN

                                                         (cont. on reverse side)
<PAGE>


    The undersigned hereby acknowledges  receipt of (a) Notice of Annual Meeting
of Shareholders to be held July 13, 1998, (b) the accompanying  Proxy Statement,
and (c) the annual report of the Company for the year ended December 31, 1997.

    This proxy will be voted as indicated.  If no indication is made, this proxy
will be voted in favor of proposals 1 and 2.




                                Date:_____________________________________, 1998


                                ________________________________________________



                                Please  sign  exactly  as  signature  appears at
                                left.   Executors,   administrators,    traders,
                                guardians,  attorneys-in-fact,  etc. should give
                                their full titles.  If signer is a  corporation,
                                please give full  corporate name and have a duly
                                authorized  officer sign,  stating  title.  If a
                                partnership,  please sign in partnership name by
                                authorized person. If stock is registered in two
                                names, both should sign.


Please vote,  sign,  date and return this proxy card promptly using the enclosed
envelope.




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